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1992 Pontiac Grand Prix STE 3.4L MIL Lamp on, high idle
Posted to GM Driveability on 5/12/1998

hello gurus vehicle has idle speed of about 1500 - 2000 rpm . iac counts drop to zero . map voltage 1.46 @ idle . found vacuum hose leaking at pcv valve and intake manifold . replaced hoses and plenum gasket . problem still there , maybe worse ? do they have ...

  Related Documents & Media  1992 Pontiac Grand Prix STE

 
Message Closed w/FIX

car Vehicle Data

1992 Pontiac Grand Prix STE

VIN 1G2WT54X4N
Engine3.4 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI / efi
Emissionsus fed emissions
SymptomsMIL Lamp on, High Idle
OccursAlways
Misc.Ste
Message Closed w/FIX

car Vehicle Data

1992 Pontiac Grand Prix STE

VIN 1G2WT54X4N
Engine3.4 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI / efi
Emissionsus fed emissions
SymptomsMIL Lamp on, High Idle
OccursAlways
Misc.Ste